MCQ
Oxidation state of $H, N, C$ in $HNC$ are respectively
- A$-3, +1, +2$
- B$-2, +1, -2$
- ✓$+1, -3, +2$
- D$-2, -1, +3$
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$PC{l_5}(g) \rightleftharpoons PC{l_3}(g) + C{l_2}(g)$ is
| Element | Ionization | enthalpy | $(kJ/mol)$ |
| $1^{st}$ | $2^{nd}$ | $3^{rd}$ | |
| $A$ | $899$ | $1757$ | $14847$ |
| $B$ | $737$ | $1450$ | $7731$ |
Which of the following statements is correct ?